librashader/librashader-runtime-gl/src/render_target.rs

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use crate::framebuffer::Viewport;
use crate::gl::Framebuffer;
use crate::gl::gl3::Gl3Framebuffer;
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#[rustfmt::skip]
static DEFAULT_MVP: &[f32; 16] = &[
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2f32, 0.0, 0.0, 0.0,
0.0, 2.0, 0.0, 0.0,
0.0, 0.0, 2.0, 0.0,
-1.0, -1.0, 0.0, 1.0,
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];
#[derive(Debug, Copy, Clone)]
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pub(crate) struct RenderTarget<'a> {
pub mvp: &'a [f32; 16],
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pub framebuffer: &'a Gl3Framebuffer,
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pub x: i32,
pub y: i32
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}
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impl<'a> RenderTarget<'a> {
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pub fn new(backbuffer: &'a Gl3Framebuffer, mvp: Option<&'a [f32; 16]>, x: i32, y: i32) -> Self {
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if let Some(mvp) = mvp {
RenderTarget {
framebuffer: backbuffer,
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x,
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mvp,
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y,
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}
} else {
RenderTarget {
framebuffer: backbuffer,
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x,
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mvp: DEFAULT_MVP,
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y,
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}
}
}
}
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impl<'a> From<&Viewport<'a>> for RenderTarget<'a> {
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fn from(value: &Viewport<'a>) -> Self {
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RenderTarget::new(value.output, value.mvp, value.x, value.y)
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}
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}